/*
 *  Copyright (C) 2010-2011 JPEXS
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.jpexs.asdec.gui.proxy;

import com.jpexs.asdec.Main;
import com.jpexs.asdec.gui.View;
import com.jpexs.proxy.CatchedListener;
import com.jpexs.proxy.ReplacedListener;
import com.jpexs.proxy.Replacement;
import com.jpexs.proxy.Server;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Calendar;

/**
 * Frame with Proxy
 *
 * @author JPEXS
 */
public class ProxyFrame extends JFrame implements ActionListener, CatchedListener, MouseListener, ReplacedListener {
    private JList swfList;
    private SWFListModel listModel;
    private JButton switchButton = new JButton("Start proxy");
    private boolean started = false;
    private JTextField portField = new JTextField("55555");

    private JCheckBox sniffSWFCheckBox = new JCheckBox("SWF", false);
    private JCheckBox sniffOSCheckBox = new JCheckBox("OctetStream", false);
    private JCheckBox sniffJSCheckBox = new JCheckBox("JS", false);
    private JCheckBox sniffXMLCheckBox = new JCheckBox("XML", false);

    /**
     * Is server running
     *
     * @return True when running
     */
    public boolean isRunning() {
        return started;
    }

    /**
     * Sets port for the proxy
     *
     * @param port Port number
     */
    public void setPort(int port) {
        portField.setText("" + port);
    }

    /**
     * Constructor
     */
    public ProxyFrame() {

        listModel = new SWFListModel(Main.replacements);
        swfList = new JList(listModel);
        swfList.addMouseListener(this);
        swfList.setFont(new Font("Monospaced", Font.PLAIN, 12));
        switchButton.addActionListener(this);
        switchButton.setActionCommand("SWITCHSTATE");
        Container cnt = getContentPane();
        cnt.setLayout(new BorderLayout());
        cnt.add(new JScrollPane(swfList), BorderLayout.CENTER);


        portField.setPreferredSize(new Dimension(60, 22));
        JPanel buttonsPanel = new JPanel();
        buttonsPanel.setLayout(new FlowLayout());
        buttonsPanel.add(new Label("Port:"));
        buttonsPanel.add(portField);
        buttonsPanel.add(switchButton);
        cnt.add(buttonsPanel, BorderLayout.NORTH);

        JPanel buttonsPanel23 = new JPanel();
        buttonsPanel23.setLayout(new BoxLayout(buttonsPanel23, BoxLayout.Y_AXIS));


        JPanel buttonsPanel2 = new JPanel();
        buttonsPanel2.setLayout(new FlowLayout());
        JButton openButton = new JButton("Open");
        openButton.setActionCommand("OPEN");
        openButton.addActionListener(this);
        buttonsPanel2.add(openButton);
        JButton clearButton = new JButton("Clear");
        clearButton.setActionCommand("CLEAR");
        clearButton.addActionListener(this);
        buttonsPanel2.add(clearButton);
        JButton renameButton = new JButton("Rename");
        renameButton.setActionCommand("RENAME");
        renameButton.addActionListener(this);
        buttonsPanel2.add(renameButton);
        JButton removeButton = new JButton("Remove");
        removeButton.setActionCommand("REMOVE");
        removeButton.addActionListener(this);
        buttonsPanel2.add(removeButton);


        JPanel buttonsPanel3 = new JPanel();
        buttonsPanel3.setLayout(new FlowLayout());
        buttonsPanel3.add(new JLabel("Sniff:"));
        buttonsPanel3.add(sniffSWFCheckBox);
        buttonsPanel3.add(sniffOSCheckBox);
        //buttonsPanel3.add(sniffJSCheckBox);
        //buttonsPanel3.add(sniffXMLCheckBox);

        buttonsPanel23.add(buttonsPanel2);
        buttonsPanel23.add(buttonsPanel3);

        cnt.add(buttonsPanel23, BorderLayout.SOUTH);
        setSize(400, 300);
        View.centerScreen(this);
        View.setWindowIcon(this);
        setTitle("Proxy");
        this.addWindowListener(new WindowAdapter() {
            @Override
            public void windowClosing(WindowEvent e) {
                setVisible(false);
                Main.removeTrayIcon();
                if (Main.abcMainFrame != null) {
                    if (Main.abcMainFrame.isVisible()) return;
                }
                if (Main.actionMainFrame != null) {
                    if (Main.actionMainFrame.isVisible()) return;
                }
                Main.showModeFrame();
            }

            /**
             * Invoked when a window is iconified.
             */
            @Override
            public void windowIconified(WindowEvent e) {
                setVisible(false);
            }
        });
        java.util.List<Image> images = new ArrayList<Image>();
        images.add(View.loadImage("com/jpexs/asdec/gui/graphics/proxy16.png"));
        images.add(View.loadImage("com/jpexs/asdec/gui/graphics/proxy24.png"));
        images.add(View.loadImage("com/jpexs/asdec/gui/graphics/proxy32.png"));
        images.add(View.loadImage("com/jpexs/asdec/gui/graphics/proxy48.png"));
        setIconImages(images);
    }


    private void open() {
        if (swfList.getSelectedIndex() > -1) {
            Replacement r = (Replacement) listModel.getElementAt(swfList.getSelectedIndex());
            Main.maskURL = r.urlPattern;
            Main.openFile(r.targetFile);
        }
    }

    /**
     * Method handling actions from buttons
     *
     * @param e event
     */
    public void actionPerformed(ActionEvent e) {
        if (e.getActionCommand().equals("OPEN")) {
            open();
        }
        if (e.getActionCommand().equals("RENAME")) {
            if (swfList.getSelectedIndex() > -1) {
                Replacement r = (Replacement) listModel.getElementAt(swfList.getSelectedIndex());
                String s = JOptionPane.showInputDialog("URL", r.urlPattern);
                r.urlPattern = s;
                listModel.dataChanged(swfList.getSelectedIndex());
            }
        }
        if (e.getActionCommand().equals("CLEAR")) {
            for (int i = 0; i < listModel.getSize(); i++) {
                Replacement r = (Replacement) listModel.getElementAt(i);
                File f = (new File(Main.tempFile(r.targetFile)));
                if (f.exists()) f.delete();
            }
            listModel.clear();
        }
        if (e.getActionCommand().equals("REMOVE")) {
            int lastIndex = -1;
            for (int k = listModel.getSize() - 1; k >= 0; k--) {
                if (swfList.isSelectedIndex(k)) {
                    Replacement r = listModel.removeURL(k);
                    File f = (new File(r.targetFile));
                    if (f.exists()) f.delete();
                    lastIndex = k;
                }
            }
            if (lastIndex >= listModel.getSize()) {
                lastIndex--;
            }
            if (lastIndex > -1) {
                swfList.setSelectedIndex(lastIndex);
            }
        }
        if (e.getActionCommand().equals("SWITCHSTATE")) {
            Main.switchProxy();
        }
    }


    /**
     * Switch proxy state
     */
    public void switchState() {
        started = !started;
        if (started) {
            int port = 0;
            try {
                port = Integer.parseInt(portField.getText());
            } catch (NumberFormatException nfe) {
            }
            if ((port <= 0) || (port > 65535)) {
                JOptionPane.showMessageDialog(this, "Wrong format for port number.", "Error", JOptionPane.ERROR_MESSAGE);
                started = false;
                return;
            }
            java.util.List<String> catchedContentTypes = new ArrayList<String>();
            catchedContentTypes.add("application/x-shockwave-flash");
            catchedContentTypes.add("application/x-javascript");
            catchedContentTypes.add("application/javascript");
            catchedContentTypes.add("text/javascript");
            catchedContentTypes.add("application/json");
            catchedContentTypes.add("text/xml");
            catchedContentTypes.add("application/xml");
            catchedContentTypes.add("application/octet-stream");
            Server.startServer(port, Main.replacements, catchedContentTypes, this, this);
            switchButton.setText("Stop proxy");
            portField.setEditable(false);
        } else {
            Server.stopServer();
            switchButton.setText("Start proxy");
            portField.setEditable(true);
        }
    }

    /**
     * Mouse clicked event
     *
     * @param e event
     */
    public void mouseClicked(MouseEvent e) {
        if (e.getSource() == swfList) {
            if (e.getClickCount() == 2) {
                open();
            }
        }
    }

    /**
     * Mouse pressed event
     *
     * @param e event
     */
    public void mousePressed(MouseEvent e) {

    }

    /**
     * Mouse released event
     *
     * @param e event
     */
    public void mouseReleased(MouseEvent e) {

    }

    /**
     * Mouse entered event
     *
     * @param e event
     */
    public void mouseEntered(MouseEvent e) {

    }

    /**
     * Mouse exited event
     *
     * @param e event
     */
    public void mouseExited(MouseEvent e) {

    }

    /**
     * Method called when specified contentType is received
     *
     * @param contentType Content type
     * @param url         URL of the method
     * @param data        Data stream
     */
    public void catched(String contentType, String url, InputStream data) {
       boolean swfOnly=false;
        if (contentType.contains(";")) contentType = contentType.substring(0, contentType.indexOf(";"));
        if ((!sniffSWFCheckBox.isSelected()) && (contentType.equals("application/x-shockwave-flash"))) return;
        if ((!sniffJSCheckBox.isSelected()) && (contentType.equals("application/javascript") || contentType.equals("application/x-javascript") || contentType.equals("text/javascript")|| contentType.equals("application/json")))
            return;
        if ((!sniffXMLCheckBox.isSelected()) && (contentType.equals("application/xml") || contentType.equals("text/xml")))
            return;
        if ((!sniffOSCheckBox.isSelected()) && (contentType.equals("application/octet-stream")))
            return;
        if (!listModel.contains(url)) {
            try {
                byte hdr[]=new byte[3];                
                data.read(hdr);        
                String shdr=new String(hdr);
                if((swfOnly) &&((!shdr.equals("FWS")) && (!shdr.equals("CWS")))){
                   return; //NOT SWF
                }
                
                File f = new File(Main.tempFile(url));
                FileOutputStream fos = new FileOutputStream(f);
                fos.write(hdr);
                byte buf[] = new byte[2048];
                int count = 0;
                while ((count = data.read(buf)) > 0) {
                    fos.write(buf, 0, count);
                }
                fos.close();
                Replacement r = new Replacement(url, Main.tempFile(url));
                r.lastAccess = Calendar.getInstance();
                listModel.addURL(r);
            } catch (IOException e) {

            }

        }
    }

    /**
     * Shows or hides this {@code Window} depending on the value of parameter
     * {@code b}.
     *
     * @param b if {@code true}, makes the {@code Window} visible,
     *          otherwise hides the {@code Window}.
     *          If the {@code Window} and/or its owner
     *          are not yet displayable, both are made displayable.  The
     *          {@code Window} will be validated prior to being made visible.
     *          If the {@code Window} is already visible, this will bring the
     *          {@code Window} to the front.<p>
     *          If {@code false}, hides this {@code Window}, its subcomponents, and all
     *          of its owned children.
     *          The {@code Window} and its subcomponents can be made visible again
     *          with a call to {@code #setVisible(true)}.
     * @see java.awt.Component#isDisplayable
     * @see java.awt.Component#setVisible
     * @see java.awt.Window#toFront
     * @see java.awt.Window#dispose
     */
    @Override
    public void setVisible(boolean b) {
        if (b == true) {
            Main.addTrayIcon();
        }
        super.setVisible(b);
    }

    public void replaced(Replacement replacement, String url, String contentType) {
        listModel.dataChanged(listModel.indexOf(replacement));
    }
}
